<template>
  <view :class="[styleType === 'text'?'segmented-control--text' : 'segmented-control--button' ]" :style="{ borderColor: styleType === 'text' ? '' : activeColor }"
    class="segmented-control">
    <view v-for="(item, index) in values" :class="[ styleType === 'text'?'segmented-control__item--text': 'segmented-control__item--button' , index === currentIndex&&styleType === 'button'?'segmented-control__item--button--active': '' , index === 0&&styleType === 'button'?'segmented-control__item--button--first': '',index === values.length - 1&&styleType === 'button'?'segmented-control__item--button--last': '' ]"
      :key="index" :style="{
        backgroundColor: index === currentIndex && styleType === 'button' ? activeColor : '',borderColor: index === currentIndex&&styleType === 'text'||styleType === 'button'?activeColor:'transparent'
      }"
      class="segmented-control__item" @click="_onClick(index)">
      <text :style="{color:
          index === currentIndex
            ? styleType === 'text'
              ? activeColor
              : '#fff'
            : styleType === 'text'
              ? '#000'
              : activeColor}"
        class="segmented-control__text">{{ item }}</text>
    </view>
  </view>
</template>

<script>
  /**
   * SegmentedControl 分段器
   * @description 用作不同视图的显示
   * @tutorial https://ext.dcloud.net.cn/plugin?id=54
   * @property {Number} current 当前选中的tab索引值，从0计数
   * @property {String} styleType = [button|text] 分段器样式类型
   * 	@value button 按钮类型
   * 	@value text 文字类型
   * @property {String} activeColor 选中的标签背景色与边框颜色
   * @property {Array} values 选项数组
   * @event {Function} clickItem 组件触发点击事件时触发，e={currentIndex}
   */

  export default {
    name: 'UniSegmentedControl',
    props: {
      current: {
        type: Number,
        default: 0
      },
      values: {
        type: Array,
        default () {
          return []
        }
      },
      arrays: {
        type: Array,
        default () {
          return []
        }
      },
      activeColor: {
        type: String,
        default: '#007aff'
      },
      styleType: {
        type: String,
        default: 'button'
      }
    },
    data() {
      return {
        currentIndex: 0
      }
    },
    watch: {
      current(val) {
        if (val !== this.currentIndex) {
          this.currentIndex = val
        }
      }
    },
    created() {
      this.currentIndex = this.current
    },
    methods: {
      _onClick(index) {
        if (this.arrays.length) {
          console.log('查看当前部门的id', this.arrays[index].id)
          if (this.arrays[index].id == -1) {
            return uni.showToast({
              title: '没有开放~不能注册会员',
              icon: 'none',
              duration: 2000
            })
          }
        }
        if (this.currentIndex !== index) {
          this.currentIndex = index
          let obj = {
            index,
            id: this.arrays[index].id
          }
          this.$emit('clickItem', obj)
        }
      }
    }
  }
</script>

<style scoped>
  .segmented-control {
    /* #ifndef APP-NVUE */
    display: flex;
    box-sizing: border-box;
    /* #endif */
    flex-direction: row;
    height: 36px;
    overflow: hidden;
  }

  .segmented-control__item {
    /* #ifndef APP-NVUE */
    display: inline-flex;
    box-sizing: border-box;
    /* #endif */
    position: relative;
    flex: 1;
    justify-content: center;
    align-items: center;
  }

  .segmented-control__item--button {
    border-style: solid;
    border-top-width: 1px;
    border-bottom-width: 1px;
    border-right-width: 1px;
    border-left-width: 0;
  }

  .segmented-control__item--button--first {
    border-left-width: 1px;
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
  }

  .segmented-control__item--button--last {
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
  }

  .segmented-control__item--text {
    border-bottom-style: solid;
    border-bottom-width: 3px;
  }

  .segmented-control__text {
    font-size: 16px;
    line-height: 20px;
    text-align: center;
  }
</style>
